Q: Is there a daily SMS limit?
A: CTM doesn't enforce a daily limit on sending text messages, but mobile carriers may flag numbers that send repeated or high-volume messages in a short time and notify our carrier.
Q: How do I enable Text Messaging?
A: Navigate to Numbers > Text Numbers and follow these instructions.
Q: Can I include shortened links in my text messages?
A: Yes, but only a dedicated, branded short domain owned by your business. See this article for more details.
Q: Can I use a Tracking Number for receiving verification codes?
A: No, we do not recommend using Tracking Numbers to receive verification codes, as we cannot guarantee they will receive messages from short codes.
Q: How many characters do text messages contain?
A: Individual text messages are inherently limited to 160 characters. Longer messages of up to 1600 characters are sent by splitting the message into segments of 160 characters each (10 messages). Messages longer than 1600 characters will be truncated to fit. Special characters may use more than a single character when composing a message.
Q: Can I send bulk messages?
A: Yes, you can send bulk messages. See this article for more details.
Q: What are the formats accepted for file attachments?
A: JPEG, PNG, GIF, and vCard. The maximum size is 8 MB.
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